java.lang.NullPointerException: at java.lang.Class.forName0(Class.java) at java.lang.Class.forName(Class.java) at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:63) at java.awt.Font.initializeFont(Font.java:259) at java.awt.Font.(Font.java:289) at undefined.cChart2.(myChart:47) at undefined.cChart2.main(myChart:1556)